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/* ===================================
   Modern Professional Invoice Design
   =================================== */

/* Page Setup */
@page {
    margin: 0cm 0cm;
}

/* Root Variables for Easy Customization */
:root {
    --primary-color: #1a56db;
    --secondary-color: #3b82f6;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --text-light: #9ca3af;
    --border-color: #e5e7eb;
    --bg-light: #f9fafb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
}

/* Body Styles */
body {
    background: #ffffff;
    padding: 30px 40px;
    margin: 0;
    color: var(--text-dark);
    font-size: 13px;
    font-family: 'dejavu sans', 'Helvetica', 'Arial', sans-serif;
    line-height: 1.6;
}

/* Invoice Wrapper */
.invoice-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    background: #ffffff;
}

/* Clearfix Utility */
.clearfix:after {
    content: "";
    display: table;
    clear: both;
}

/* ===================================
   HEADER SECTION
   =================================== */

.invoice-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
}

.header-left {
    float: left;
    width: 50%;
}

.header-right {
    float: right;
    width: 48%;
    text-align: right;
}

/* Company Logo */
.company-logo {
    margin-bottom: 15px;
}

.company-logo img {
    max-height: 80px;
    max-width: 200px;
    object-fit: contain;
}

/* Company Details */
.company-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0 0 10px 0;
    letter-spacing: -0.5px;
}

.company-info {
    margin: 0;
    font-size: 11px;
    line-height: 1.8;
    color: var(--text-gray);
}

.company-info span {
    display: block;
}

.company-info strong {
    color: var(--text-dark);
    font-weight: 600;
}

/* Invoice Title */
.invoice-title h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0 0 10px 0;
    letter-spacing: 1px;
}

.invoice-number {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-gray);
    background: var(--bg-light);
    padding: 8px 15px;
    border-radius: 6px;
    display: inline-block;
    margin-bottom: 15px;
}

/* Invoice Meta Information */
.invoice-meta {
    margin-top: 15px;
}

.meta-item {
    margin-bottom: 8px;
    font-size: 12px;
}

.meta-label {
    font-weight: 600;
    color: var(--text-gray);
    display: inline-block;
    min-width: 100px;
}

.meta-value {
    color: var(--text-dark);
    font-weight: 500;
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Status Colors */
.status-completed,
.status-paid,
.payment-paid {
    background: #d1fae5;
    color: #065f46;
}

.status-pending,
.payment-pending,
.payment-unpaid {
    background: #fef3c7;
    color: #92400e;
}

.status-partial,
.payment-partial {
    background: #dbeafe;
    color: #1e40af;
}

.status-cancelled,
.status-returned {
    background: #fee2e2;
    color: #991b1b;
}

/* Header Divider */
.header-divider {
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    margin: 20px 0 30px 0;
    border-radius: 2px;
}

/* ===================================
   INFO SECTION (Bill To / From)
   =================================== */

.info-section {
    margin-bottom: 35px;
}

.info-box {
    width: 48%;
    float: left;
    background: var(--bg-light);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.info-box.company-info-box {
    float: right;
}

.info-header {
    background: var(--primary-color);
    padding: 12px 20px;
    border-bottom: 2px solid var(--secondary-color);
}

.info-header h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 700;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.info-content {
    padding: 20px;
}

.customer-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 12px 0;
}

.info-line {
    margin: 8px 0;
    font-size: 12px;
    color: var(--text-gray);
}

.info-line strong {
    color: var(--text-dark);
    font-weight: 600;
    display: inline-block;
    min-width: 80px;
}

/* ===================================
   PRODUCTS TABLE
   =================================== */

.products-section {
    margin-bottom: 30px;
}

.products-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.products-table thead {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.products-table thead th {
    padding: 14px 12px;
    text-align: left;
    font-size: 12px;
    font-weight: 700;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

.products-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

.products-table tbody tr:nth-child(even) {
    background: var(--bg-light);
}

.products-table tbody tr:last-child {
    border-bottom: none;
}

.products-table tbody td {
    padding: 14px 12px;
    font-size: 12px;
    color: var(--text-dark);
    vertical-align: top;
}

/* Product Info Column */
.product-info {
    width: 40%;
}

.product-name {
    display: block;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.product-code {
    display: block;
    font-size: 11px;
    color: var(--text-gray);
    margin-bottom: 3px;
}

.product-serial {
    display: block;
    font-size: 11px;
    color: var(--info-color);
    font-weight: 500;
}

/* Table Columns */
.price-col,
.qty-col,
.discount-col,
.tax-col,
.total-col {
    text-align: right;
    font-weight: 500;
}

.price-col {
    width: 12%;
}

.qty-col {
    width: 12%;
}

.discount-col {
    width: 10%;
    color: var(--danger-color);
}

.tax-col {
    width: 10%;
}

.total-col {
    width: 14%;
    font-weight: 700;
    color: var(--primary-color);
    font-size: 13px;
}

/* ===================================
   SUMMARY SECTION
   =================================== */

.summary-section {
    margin-bottom: 40px;
    clear: both;
}

.summary-box {
    float: right;
    width: 320px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.summary-table {
    width: 100%;
    border-collapse: collapse;
}

.summary-row td {
    padding: 12px 20px;
    font-size: 13px;
    border-bottom: 1px solid var(--border-color);
}

.summary-row:last-child td {
    border-bottom: none;
}

.summary-label {
    font-weight: 600;
    color: var(--text-gray);
    text-align: left;
}

.summary-value {
    font-weight: 600;
    color: var(--text-dark);
    text-align: right;
    font-size: 14px;
}

/* Total Row */
.total-row {
    background: var(--primary-color);
}

.total-row .summary-label,
.total-row .summary-value {
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    padding: 16px 20px;
}

/* Paid Row */
.paid-row {
    background: #d1fae5;
}

.paid-row .summary-label,
.paid-row .summary-value {
    color: #065f46;
    font-weight: 700;
}

/* Due Row */
.due-row {
    background: #fef3c7;
}

.due-row .summary-label,
.due-row .summary-value {
    color: #92400e;
    font-weight: 700;
    font-size: 15px;
}

/* ===================================
   FOOTER SECTION
   =================================== */

.invoice-footer {
    clear: both;
    margin-top: 50px;
    padding-top: 25px;
    border-top: 2px solid var(--border-color);
}

.footer-content {
    margin-bottom: 20px;
    padding: 15px 20px;
    background: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    border-radius: 4px;
}

.footer-content p {
    margin: 0;
    font-size: 12px;
    color: var(--text-gray);
    line-height: 1.6;
}

.footer-notice {
    text-align: center;
    padding: 15px 0;
}

.footer-notice p {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 0.5px;
}

/* ===================================
   PRINT OPTIMIZATION
   =================================== */

@media print {
    body {
        padding: 0;
    }
    
    .invoice-wrapper {
        width: 100%;
        max-width: none;
    }
    
    .products-table {
        page-break-inside: auto;
    }
    
    .products-table tr {
        page-break-inside: avoid;
        page-break-after: auto;
    }
    
    .summary-section {
        page-break-inside: avoid;
    }
    
    .invoice-footer {
        page-break-inside: avoid;
    }
}

/* ===================================
   UTILITY CLASSES
   =================================== */

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.font-bold {
    font-weight: 700;
}

.font-semibold {
    font-weight: 600;
}

.mb-10 {
    margin-bottom: 10px;
}

.mb-20 {
    margin-bottom: 20px;
}

.mt-10 {
    margin-top: 10px;
}

.mt-20 {
    margin-top: 20px;
}
